456 citations · 3.3k across the 66 of their papers we have counts for
9 papers · 1 filter
Efimov Effect in the Dirac Semi-metals
Pengfei Zhang, Hui Zhai
Efimov effect refers to quantum states with discrete scaling symmetry and a universal scaling factor, and has attracted considerable interests from nuclear to atomic physics commun…
Continuous-variable geometric phase and its manipulation for quantum computation in a superconducting circuit
Chao Song, Shi-Biao Zheng, Pengfei Zhang +10
Geometric phase, associated with holonomy transformation in quantum state space, is an important quantum-mechanical effect. Besides fundamental interest, this effect has practical…
Emulating many-body localization with a superconducting quantum processor
Kai Xu, Jin-Jun Chen, Yu Zeng +12
The law of statistical physics dictates that generic closed quantum many-body systems initialized in nonequilibrium will thermalize under their own dynamics. However, the emergence…
Dispersive SYK model: band structure and quantum chaos
Pengfei Zhang
The Sachdev-Ye-Kitaev (SYK) model is a concrete model for non-Fermi Liquid with maximally chaotic behavior in -. In order to gain some insights into real materials in highe…
Machine Learning Topological Invariants with Neural Networks
Pengfei Zhang, Huitao Shen, Hui Zhai
In this Letter we supervisedly train neural networks to distinguish different topological phases in the context of topological band insulators. After training with Hamiltonians of…
Tunable Quantum Chaos in the Sachdev-Ye-Kitaev Model Coupled to a Thermal Bath
Yiming Chen, Hui Zhai, Pengfei Zhang
The Sachdev-Ye-Kitaev (SYK) model describes Majorana fermions with random interaction, which displays many interesting properties such as non-Fermi liquid behavior, quantum chaos,…
Competition between Chaotic and Non-Chaotic Phases in a Quadratically Coupled Sachdev-Ye-Kitaev Model
Xin Chen, Ruihua Fan, Yiming Chen +2
The Sachdev-Ye-Kitaev (SYK) model is a concrete solvable model to study non-Fermi liquid properties, holographic duality and maximally chaotic behavior. In this work, we consider a…
Universal three-body bound states in mixed dimensions beyond the Efimov paradigm
Pengfei Zhang, Zhenhua Yu
The Efimov effect was first predicted for three particles interacting at an -wave resonance in three dimensions. Subsequent study showed that the same effect can be realized by…
10-qubit entanglement and parallel logic operations with a superconducting circuit
Chao Song, Kai Xu, Wuxin Liu +16
Here we report on the production and tomography of genuinely entangled Greenberger-Horne-Zeilinger states with up to 10 qubits connecting to a bus resonator in a superconducting ci…